package com.kuang.dao;

import com.kuang.pojo.Department;
import com.kuang.pojo.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * @program: springboot-03-web
 * @description:员工dao
 * @author: 陈恩涛
 * @create: 2020-10-20 21:44
 **/
@Repository
public class EmployeeDao {

    //模拟数据库中的数据
    private static Map<Integer, Employee> employees = null;

    //员工有所属的部门

    @Autowired
    private DepartmentDao departmentDao;

    static {
        employees = new HashMap<Integer, Employee>();    //创建一个员工

        employees.put(1001,new Employee(1001,"AA","309521305@qq.com",1,new Department(101,"教学部")));
        employees.put(1002,new Employee(1002,"BB","409521305@qq.com",0,new Department(102,"市场部")));
        employees.put(1003,new Employee(1003,"CC","509521305@qq.com",0,new Department(103,"教研部")));
        employees.put(1004,new Employee(1004,"DD","609521305@qq.com",0,new Department(104,"运营部")));
        employees.put(1005,new Employee(1005,"EE","709521305@qq.com",1,new Department(105,"后勤部")));
    }

    //主键自增
    private static  Integer initId = 1006;

    //新增一个员工
    public void save(Employee employee) {
        if(employee.getId() == null){
            employee.setId(initId++);   //主键自增
        }

        //部门关联外键
        employee.setDepartment(departmentDao.getDepartmentById(employee.getDepartment().getId()));

        employees.put(employee.getId(),employee);
    }

    //查询全部员工
    public Collection<Employee> getAllEmployees(){
        return employees.values();
    }

    //通过id查询员工
    public Employee getEmployeeById(Integer id){
        return employees.get(id);
    }

    //删除员工
    public void deleteEmployee(Integer id){
        employees.remove(id);
    }

}
